Wrapping machine



June 19, 1923.

R. S. HATCH WRAPPING MACHINE Filed June l0 1922 /N VENTO/e.

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Patented June 19, y1.923. e

RAYMOND s. HATCH, or. NUTL'EY, NEW JERsEY,' AssIGNoR 'ro THEHAMMERSLEYMANUFACTURING COMPANY, lor NEW YORK, lN. Y., ACoRPoRATIoN 0F NEW JERSEY.e

1,253,636 of January 15, 1918, and is direct' ed to improvements in' thevertical chute yor passageway through whichthe'bread or l p `7 nd 8indicate thetwo walls'ofthe vertiother article to be wrapped liftedduring one stage of the wrappingV operation. l

One wall of thevpassageway or chute of the lpatent above referred lto isprovided with a series of vertically extending slots to permit of thepassage of the lifting or elevating kfingers by which the loaf' israised and' I have found that these slots are more or less objectionableunder certain wrapping conditions causing wrinkling and sometimesfracture ofthe;` paper. wrapper V'and asa matter of fact Apracticallyprohibit the useof a self-sealing waxed paper. It is vthe purpose, ofthe present invention to provide a chute in which theslots in thewallthereof are automatically closed olf behind the lifting lingers so thattheV side of the plate below the fingers andv neXtthe article-beingwrapped is 4smooth and unbroken, thereby preventing tearing or wrinklingthe paper wrapper as the same is elevated,` draped' over the topof theloaf or other articleA being raised in the chute. l v

The machine to which my invention is applied is vof a well knowntype.and h'enceI will notillustrate the'same in the accompanying drawings butwill merely-show my improved chute in detail with theplifting fingersIand. associated mechanismy shown more or less diagrammatically.

In the accompanying drawings,.--,v l Fig. l shows myinvention in 'partsec? tional endv elevation;` and .e

Fig. `2 is a view taken substantially on'the line 2-2 of Fig. l.

I Referring to `drawings, in. detailfl-l` lSl HAifcH,-.

cause a I e ,to a lhorizontal position, fand as the chain '12 j'WRAPPING'MACHINE Y Appiicatiop sied June io, 1,922. i seaiNq. Senasa.

designatesna drum over vwhich thepaper coni.

I'stituting the .wrapper is fedgthe paper, passing underA a series ofrolls 2 and 'then over a lbed 3.; Therolls 2 arey mounted uponandvrotate, with a shaft. Theshaft Lismount-A,

ed at its ends inarms 5y .ofa' vrookshaft` 6, means being provided Vforrocking vthe j shaft so that when the rolls@ bear upon the paper the.web will beadvanced. to the'vsevering mechanism., f' Preferablythe'ap'ertures( in the rolls 2 `are larger thanlthe shaft 4 'to permitof a "slight movement oftherollshn the f Shaft to compensate for anylvariation in the thickness of thehpaper f.

calpassagewayfor chute to which my invention is specifically directedAthe 'wall' 7 being for the purpose of lifting fthe article.` to b'e*wrappedv vertically inthe .chute 'composed' of the side l 'wallsw? and.8, the article being raised by these `fingers beneath the paperfedfacross the bed 3.l This wrapper as thelarti- 'cle is elevated isfoldedl down the sides' of the article bythewalllof thechute' as will beapparent. e, l y' v The fingersy 11 are carried by a chain 12 driven bv" a sprocket wheel 13 'and'each lshaft 1li by` which fthe fingerj isattached to-the chain carries an rarm 15 carryinga roller 16 is providedwith an offset 18y adjacent the ttopfthereof and followed yloyftheroller :16 to finger 11 to' rotate about thefshafb 14:

so j

'traveling in a cam track 17.' This camtraclt v continues its movementthe rollerl followingthe cam track will gradually carry thefingerendwise while still in a horizontal po- .sitionout of its slot 9or y`104 in theplate 7. .p As so far described it-will be seen that thel fingers 11 are elevated, a pair at a time, it being understood thatitispreferable lto have two or' more fingers upon eachshaft 14j; the

fingers will raise the articleto zbe' wrapped 1 in thechute orpassageway providedbythe plates 7) and 8, thepaperwrapper inst priortothe commencement ofthe upward movenient.` ofthe article -to bewrappedhaving feo been fed forward over the top of the article to bewrapped so as to be folded about the sides thereof as the article islifted. As the article to be wrapped is elevated to its upward limit thefingers 11 will be tipped so as to be no longer a support for thearticle and are retracted out of the slots 9 and 10.

It will be understood of course that the article to be .wrapped isthereafter received by other supporting apparatus such as shown in theSevigne and Arnold patent above referred to and carried through theremaining wrapping and sealing operations. This feature has nothing todo with the present-invention. i

In order that the paper wrapper may not be torn and creased by the slots`9and 10 I rovide means for closing these slots off after the fingers 11have traversed them a certain 'distance and this mechanism will now bedescribed. y

From Figs. 1 and 2 it will be seen that the inner side of the plate 7isr provided with two curved recesses 18 embracing the slots 9 and 10.These recesses are identical and their associatedv mechanism and hencebut one will.

its outer end a lever 21.V Attached to the end of this lever and toafixture 22A is a coil spring. 23 `always under tension and adapted toholdthe sector plate or gate 19 in closed position, that is to Vs ay inposition to close off theslots 9 and 10. This plate or gate lies Vflushvwith the inner side of the plate 7 so that the side of the plate 7, inother words the lwall of the chute is smooth and Aunbroken lwith thegate closed.

In order that the gate may be properly guidedin its swinging movement Iprovide the-.same with guide blocks 24, one of which 1cooperateswith thelower part ofthe slot 9 and an offset continuation 25 of this-slot.which is concentric with the are of the recess 18, the `othercooperating with a slot 26 also concentric with the arc .of the recess18.

As above pointed out, two or more recesses and twov 0r more slots areprovided in the l plate 7 .and there is ofcourse a plate or gate 19 Aforeach slot.

,v From vthe yforegoing itwill be seenv that initially the ,inner faceof the plate 7 4 is `smooth and unbroken from the top or arc of .thegate `19 to the bottom edgey of the plate i7.

Inthe operation of the machine as the fingers 11 Strikethe under side ofthe gates 19 7thesaine vwill be4 swung about their centers to permitofthe fingers passing up through the slots, vthese plates, howeversnapping backV to their orginial positions as soon as the fingers `havepassed, so that the paper wrapper as it is carried upwardly by thearticle to be wrapped. will be dragged along a smooth surface so far asthat portion below the bottom of the article is concerned, therebyeliminating the possibility of tearing the wrapper or wrinkling the sameby the slots 9 and 10. s

It is to be understood that my improved forinof slotted chute Side-wallmay be varied within the scope of the present invention, the presentinvention being broadly directed to the provision of means .for closingoff the elevating finger slots after the fingers have entered the slotsso as to afford a i smooth surface'along which the paper wrapper isdragged.

I claim: *y f 1. In a wrapping machine, apair of plates spaced from eachother to form a passageway orchute, elevating fingers for raising anarticle' in lsaid chute, one of said plates being provided withislotsfor the passage of said fingers and gates for automatically closing saidslots. I y

2. In'a wrapping machine, a chute, elevating fingers `for raisingarticles therein, one of the walls of said chute being vslotted forpassage of said ,fingers and means for automatically closing said slots.

8, Ina wrapping machine comprising a chute, the combination of a slottedplate constituting one wall of said chuteand means `for automaticallyclosing said slots at predetermined intervals to convert the'face ofsaid 'plateadjacent the `interiorof the chute into a lsmooth unbrokensurface lthroughout a portion of said slots. n

4. In a wrapping machine, the combination of a chute, elevating fingersfor raising articles in said Chute, one wall of said chute lbeingprovided with slots for ther passage of said fingers and gates one faceof which lies flush with the inner face of lsaid wall for closingofflsaid slots after the passage .of

the elevating fingers therethrough.

5. In combination, a slotted plate, a recess therein embracing the slotin said plate, va gate in said recess one face ofsaid gate lying flushwith one face of said plate and a spring for actuating said gate intoposition to close offI said slot. v

6. In combination, a `slotted 'plate provided with .a recess embracingthe slot in the plate, a gate pivotally mounted on 'said plate and lyingwithin said recess so that one face `of the gate lies flush with ,oneface of the plate, said plate being provided with arcuate slots andguiding blocks carried by said gate and riding in said arcuate slots forguiding the movement of said gate.

y 7. In a wrapping machine,l the combina tion of a pair of spacedplatesforming a passageway or chute', elevating fingers for raising articlesin said chute, vone of said plates'being slottedr to ypermit the passageof said fingers through the chute, a gate set into said slotted plateAand pivotally carried thereby for closing off Vthe slot in said plate-vv and arranged to be raised bythe elevatingV lingers as saidingers passthrough the slot in said plate, and means for returning said gate toslot-olosing position automatically, saidgate being arranged to lieflush with the aoe the slotted plate adjacent the interior of the chuteso that this face ofthe slotted plate below the fingers pI'eSeIllS aSmooth un; my' i l i l I broken-surface. 2 v i, Thisspecification,signed'gthls 8th dayl of June, 1922.

, RAYMOND s HAToH.y

